Do you know of a really cheap way to call Haiti? (Not translation.. Just a question.)

Sometimes I'd use a pre-paid calling card.  But they stack up quickly and I have to keep buying them.  And sometimes I have 1 min left in one card and 3 min left in the other.
But I do have an international calling plan with my current cell phone service provider which I find that to be the cheapest.

Ask me anything